Protesters marched Tuesday afternoon in downtown Evanston and Chicago to show their displeasure with President Donald Trump, who is moving quickly to upend the policies of Barack Obama.

About 200 Evanston Township High School students left their classes and marched about a mile to Fountain Square downtown, chanting "Hey hey, ho ho, Donald Trump has got to go."

"If you are not outraged, you are not paying attention," organizer Maya Madjar, 17, an Evanston Township senior, announced into a megaphone to cheers from fellow students. "Protesting is only step one."

In Chicago, activists marched from Federal Plaza to the building where Goldman Sachs has offices on South Wacker Drive, largely to protest Trump's orders in support of the construction of the Dakota Access and Keystone XL oil pipelines.

"A few days into office, and there are things people have been fighting for years — like the heroic struggle of the Standing Rock Sioux tribe (against the Dakota Access pipeline) — but with a stroke of the pen, that is being reversed," said Downey, who lives in the Logan Square neighborhood. "We cannot just slowly build up resistance or wait. We have to stop this."

Protesters and activists marched from Federal Plaza to the building where Goldman Sachs has offices on South Wacker Drive in Chicago, largely to protest President Donald Trump's orders in support of the construction of the Dakota Access and Keystone XL oil pipelines.

(Brian Cassella/Chicago Tribune)

Former President Obama rejected the Keystone in November 2015, saying the Canadian pipeline that would have carried petroleum to the Gulf Coast contradicted America's environmental policies.

Last month, in response to protests and court battles, the Army Corps of Engineers said it would find alternative routes for the Dakota Access pipeline in North Dakota, which the Standing Rock Sioux tribe argued would disrupt its water supply and burial sites.

Trump's orders cleared the way for the controversial projects to resume. The president told reporters Tuesday in the Oval Office that the U.S. is renegotiating the terms and conditions of the pipeline construction. He hailed the projects as job creators and opportunities to use American steel.

"We are, and I am, very insistent that if we are going to build pipelines in the United States, the pipes should be made in the United States," Trump said while signing three executive orders that deal with pipeline construction, including one that would reduce regulatory pressure on domestic companies.

Evanston Township High School students left class to stage an anti-Trump administration protest.

Evanston Township High School students left class to stage an anti-Trump administration protest.